Startup Idea : Write-On Textbook Rentals

College textbooks are ridiculously high as everyone knows. I'm a sophomore and have always rented my textbooks from online sites. The problem I face is that you can't write on these books or else you get charged full MSRP for the book upon return. This comes to be a huge problem because, as you know, college students are faced with, on a daily basis, writing and taking notes in our books I feel like this is a MAJOR reason why most people just buy the books brand new. I have an idea of a company that offers rental textbooks at a fraction of the MSRP cost and with see-through plastic sleeves embedded onto every page of the textbook for the students convenience of being able to write, doodle, highlight, draw, whatever their hearts desire within the textbooks. And upon return we will replace the sleeves with new ones and it'll be ready to go again